All eukaryotic cell types express actin. The regulation of the actin cytoskeleton is tightly linked to vital biological properties such as polarity, motility, cell-cell contact, exocytosis and proliferation (1&2). While lower eukaryotes such as yeast, have only one actin gene; higher eukaryotes have several isoforms encoded by a family of genes (3&4). At least six types of actin are present in mammalian tissues and fall into three classes (5). Alpha-actin expression is limited to various types of muscle, whereas beta and gamma are the principle constituents of filaments in other tissues (6).